Granite Hills

Community in San Diego County

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Report created October 27, 2026 at www.firezones.info/community/30703/granite-hills

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    52% Very High

    Most of the Very High land is in the State Responsibility Area, where the State Fire Marshal's zones apply.

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  • Fire history

    Share of the land inside a recorded wildfire perimeter

    52% has burned

    Most recently the 2017 Greenfield Fire, which burned 11 acres here, one of 9 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    20% Elevated

    Utilities may shut off power in the CPUC High Fire-Threat District in fire weather, and homes outside it can lose power when their lines run through it.

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Land by hazard class

  1. Very High 931 acres · 899 state, 31 local 52%
  2. High 89 acres · 45 state, 44 local 5%
  3. Moderate 81 acres · 18 state, 64 local 5%
  4. Non-wildland 686 acres · Local Responsibility Area 38%

1,788 acres of land in all, 963 in the State Responsibility Area and 825 in the Local. State zones are the ones the State Fire Marshal designated, in effect since 1 April 2024. Local zones are CAL FIRE's 2025 recommendation, which each city or county adopts by ordinance and can make stricter. How to read fire zones

Fires that burned here

  1. 1970 Laguna Fire Of 174,162 acres in all · Cause: Campfire 867 acres
  2. 2003 Cedar Fire Of 270,686 acres in all · Cause: Equipment use 415 acres
  3. 1958 Valley View #2 Fire Of 1,206 acres in all 399 acres
  4. 1953 Tunnel Hill Fire Of 1,299 acres in all 147 acres
  5. 2013 Valley 2 Fire 59 acres
  6. 1950 Valley View Fire Of 2,445 acres in all 18 acres
  7. 1983 Euclid Fire Of 402 acres in all · Cause: Equipment use 14 acres
  8. 1965 Suncrest Fire Of 1,434 acres in all 13 acres
  9. 2017 Greenfield Fire Of 13 acres in all 11 acres

In all, 933 acres of Granite Hills have burned. Acres are the land each fire burned here, and fires that crossed less than an acre are not counted. Some older or smaller fires may be missing, and a fire perimeter can include unburned patches. How to read fire history

Sources

Fire hazard severity zones
CAL FIRE Office of the State Fire Marshal
State map published 27 June 2025, local map 2 February 2026
Fire history
CAL FIRE Fire and Resource Assessment Program
Published 28 July 2026
Power line fire risk
California Public Utilities Commission
Published 23 February 2026

This site is independent and not affiliated with CAL FIRE or the CPUC, so for an official determination, check with the agency or your city or county. How we read the data

Nearby areas

ZIP codes in Granite Hills

Neighboring communities

  1. Granite Hills 52% Very High · this area
  2. Bostonia 18% Very High
  3. Crest 96% Very High
  4. El Cajon 4% High · 3% Very High
  5. Lakeside 61% Very High
  6. Rancho San Diego 55% Very High
  7. Winter Gardens 46% Very High